I wonder if it's the chain tensioner making the tick? Also the chain sprocket is coated with a rubber compound to reduce noise, if this has worn off it could be making all the noises you described, have the dealer install a new chain sprocket before touching the rest of the valvetrain. could be because there is no oil on the chain sprockets in the morning start-up, which is why it is loudest at this time.


It would be great if you can take a picture of the the valve buckets and cam lobes to check for wear, I have a feeling there is nothing wrong with the cam or the buckets. maybe I'll ask HDDP to inspect his NA motor since he's pulled it out of the car. would like to see some comparo pix.